Maine lobstermen are revving their engines as the state's lobster boat races continue in Harpswell.

Sunday's races are the eighth of the season in the summer-long string of races that take place in lobster-fishing harbors along the Maine coast.

The races are annual action-packed contests where lobstermen race their vessels as spectators watch from shore and from boats that line the race courses. Fishermen compete for prizes and bragging rights, with the fastest of the souped-up boat reaching speeds faster than 60 mph.